Patents by Inventor Prashanth Akula
Prashanth Akula has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10149276Abstract: Various embodiments include methods for managing antennas on an aerial robotic vehicle used for wireless communications. A processor may receive position information identifying a location of the aerial robotic vehicle, determine whether to switch from using a first antenna to using a second antenna for active communications of the aerial robotic vehicle based on the position information, and switch active communications from using the first antenna to using the second antenna in response to determining that active communications of the aerial robotic vehicle should switch from using the first antenna to using the second antenna. The processor may make the determination using information from a database, which may correlate aerial robotic vehicle position to whether to use a particular one of the first and second antennas for active communications. The determination may also be based on a comparison of signal qualities obtained by both antennas.Type: GrantFiled: August 25, 2017Date of Patent: December 4, 2018Assignee: QUALCOMM IncorporatedInventors: Prashanth Akula, Edward Harrison Teague
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Publication number: 20180343612Abstract: Some aspects described herein reduce the negative performance impact associated with the voltage droop of a user equipment (UE) battery. For example, aspects described herein may be used to configure a UE with a pattern that includes a battery recovery time period that prevents a battery voltage of the UE from falling below a critical threshold and/or reduces the likelihood of the battery voltage falling below the critical threshold. In this way, UE performance may be improved, battery performance may be improved, battery life may be extended, and/or the like.Type: ApplicationFiled: December 15, 2017Publication date: November 29, 2018Inventors: Prashanth AKULA, Alberto Rico Alvarino, Hao Xu, Xiao feng Wang, Umesh Phuyal, Kapil Bhattad, Wanshi Chen, Peter Gaal, Mungal Singh Dhanda
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Publication number: 20180343624Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support communication between a user equipment (UE) and a base station on multiple carriers (i.e., carrier aggregation). In some cases, the UE may be scheduled to transmit uplink signals on the different component carriers during transmission time intervals (TTIs) that have different durations. In such cases, it may be appropriate for the UE to determine a maximum transmit power limit relating to the amount of power used for the uplink transmissions on the multiple carriers. As described herein, the UE may identify one of the component carriers as a reference component carrier, and the UE may determine the maximum transmit power limit for a duration of a TTI associated with the reference component carrier. The UE may then transmit on the multiple carriers in compliance with the maximum transmit power limit.Type: ApplicationFiled: May 23, 2018Publication date: November 29, 2018Inventors: Prashanth Akula, Amir Farajidana, Seyedkianoush Hosseini
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Publication number: 20180288731Abstract: Various embodiments include methods for managing antennas on an aerial robotic vehicle used for wireless communications. A processor may receive position information identifying a location of the aerial robotic vehicle, determine whether to switch from using a first antenna to using a second antenna for active communications of the aerial robotic vehicle based on the position information, and switch active communications from using the first antenna to using the second antenna in response to determining that active communications of the aerial robotic vehicle should switch from using the first antenna to using the second antenna. The processor may make the determination using information from a database, which may correlate aerial robotic vehicle position to whether to use a particular one of the first and second antennas for active communications. The determination may also be based on a comparison of signal qualities obtained by both antennas.Type: ApplicationFiled: August 25, 2017Publication date: October 4, 2018Inventors: Prashanth Akula, Edward Harrison Teague
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Publication number: 20180278393Abstract: Methods, systems, and devices for wireless communication are described that support dynamic transient period configurations for shortened transmission time intervals (sTTIs). A transient period may be configured within uplink transmissions such that protection is enabled for reference signals and data. For example, a user equipment (UE) may receive a resource grant from a base station for an uplink transmission, where the uplink transmission includes at least a first reference signal and a transmission time interval (TTI) that includes data and a second reference signal. The UE may identify a type of the reference signals and data, and may determine a priority based on the identified types of reference signals and data. The UE may then configure a transient period that overlaps with the first reference signal, the TTI, or both, based on the priority.Type: ApplicationFiled: March 15, 2018Publication date: September 27, 2018Inventors: Prashanth Akula, Seyedkianoush Hosseini, Wanshi Chen, Amir Farajidana, Peter Gaal
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Publication number: 20180220441Abstract: Methods, systems, and devices for wireless communication are described that support time mask techniques for shortened transmission time intervals (sTTIs) that may enhance low latency communications. Time masks may be identified and applied for transmissions that use sTTIs, in a manner that provides increased portions of sTTI durations having higher transmission power, and thus increase the likelihood of successful reception of such transmissions at a receiver. In some cases, a transmitter, such as a user equipment (UE), may identify one or more sTTIs for transmissions of a first wireless service (e.g., an ultra-reliable low-latency communication (URLLC) service). An sTTI may be identified based on a duration of a TTI associated with the first wireless service being below a threshold duration (e.g., a TTI duration of less than 1 ms may be identified as an sTTI).Type: ApplicationFiled: January 31, 2018Publication date: August 2, 2018Inventors: Prashanth Akula, Seyedkianoush Hosseini, Wanshi Chen, Amir Farajidana
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Patent number: 9450626Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.Type: GrantFiled: March 10, 2015Date of Patent: September 20, 2016Assignee: QUALCOMM IncorporatedInventors: Ojas Mahendra Choksi, Bin Fan, Bassel Hanafi, Hasnain Mohammedi Lakdawala, Prashanth Akula, Faramarz Sabouri
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Publication number: 20160218852Abstract: An apparatus including: a first amplifier configured to amplify an input signal from multiple bands within a first frequency band class; and a plurality of downconverters coupled to the first amplifier, each downconverter configured to downconvert in one band of the multiple bands.Type: ApplicationFiled: January 22, 2015Publication date: July 28, 2016Inventor: Prashanth Akula
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Patent number: 9350392Abstract: An RFIC configuration for reduced antenna trace loss is disclosed. In an exemplary embodiment, an apparatus includes a primary RFIC and a secondary RFIC that is configured to receive analog signals from at least two antennas. The secondary RFIC is configured to process selected analog signals received from at least one antenna to generate an analog output that is input to the primary RFIC.Type: GrantFiled: December 12, 2012Date of Patent: May 24, 2016Assignee: QUALCOMM IncorporatedInventors: I-Hsiang Lin, Zhijie Xiong, Seshagiri Krishnamoorthy, Jin-Su Ko, Prashanth Akula, Liang Zhao, Kevin Hsi Huai Wang, Desong Zhao
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Publication number: 20160142085Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.Type: ApplicationFiled: March 10, 2015Publication date: May 19, 2016Inventors: Ojas Mahendra Choksi, Bin Fan, Bassel Hanafi, Hasnain Mohammedi Lakdawala, Prashanth Akula, Faramarz Sabouri
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Patent number: 9223376Abstract: A method and system for managing electrical current within a portable computing device (“PCD”) includes assigning a priority to two or more communications supported by the PCD. A present level of a power supply for the PCD may be monitored by a communications power (“CP”) manager module. Next, the CP manager module may determine if the two or more communications may be transmitted at the present level of the power supply. If the two or more communications cannot be transmitted at the present level of the power supply, then the CP manager module may determine if a timing of at least one of the communications may be adjusted. The CP manager module may also determine a theoretical power level adjustment for at least one of the communications. The two or more communications may be transmitted with any calculated timing off sets and power level adjustments.Type: GrantFiled: March 15, 2013Date of Patent: December 29, 2015Assignee: QUALCOMM IncorporatedInventors: Amy Derbyshire, Francis Ngai, Ali Taha, Eric Mikuteit, Michael Lee McCloud, Amit Mahajan, David Coronel, Prashanth Akula, Todd Sutton, Hardik Patel, Hector Corleto
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Patent number: 9225493Abstract: The present disclosure includes systems and methods for operating a wireless communication system in multiple modes. The system is configured in a first mode when a transmission interference in a receiver of a wireless device is below a first threshold. The system is configured in one or more intermediate modes when the transmission interference is above the first threshold and below a second threshold. The system is configured in a second mode when the transmission interference is above the second threshold. The one or more intermediate modes activate interference management processes and the wireless device transmits data and receives data simultaneously. In some embodiments, transmission interference may be based on an SINR measurement.Type: GrantFiled: November 6, 2013Date of Patent: December 29, 2015Assignee: QUALCOMM IncorporatedInventors: Xiaoyin He, Ashok Mantravadi, Bruce A Judson, Prashanth Akula
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Patent number: 9172414Abstract: The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust receive (Rx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when a subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Rx processing to mitigate the effects of de-sense on the victim while causing minimal impact to the aggressor.Type: GrantFiled: September 11, 2013Date of Patent: October 27, 2015Assignee: QUALCOMM IncorporatedInventors: Wenjun Li, Huang Lou, Michael L. McCloud, Amit Mahajan, Nate Chizgi, Jing Sun, Francis M. Ngai, Jun Hu, Vansh Pal Singh Makh, Prashanth Akula, Tsai-Chen Huang, Jittra Jootar, Erdogan Dede, Narendra Varma Gottimukkala, Yingbo Li
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Publication number: 20150282091Abstract: Various embodiments in the disclosure provide methods implemented by a processor executing on a mobile communication device to dynamically determining whether the power saved by powering down the RF chain between the end of the last reception activities and the beginning of the next reception activities will exceed the power expended to reinitialize the RF chain's components and registers for the next reception activities. Based on this determination, the device processor may configure the RF chain either to power down fully, as in conventional implementations, or to enter a low-power mode in which power is maintained to the power rails supplying the memory registers storing RF communication data, thereby avoiding the power surge of restarting the registers and part of the power drain associated with writing the communication data back into the registers. In some embodiments, the mobile communication device may be a multi-SIM device.Type: ApplicationFiled: March 28, 2014Publication date: October 1, 2015Applicant: QUALCOMM IncorporatedInventors: Jeremy Huei Lin, Rahul Kashyap, Ping Zhou, RaviTeja Yarra, Prashanth Akula, Kevin Hsi-huai Wang, Anil Satyanarayana Rao, Ali Taha, Subbarayudu Mutya
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Publication number: 20150124661Abstract: The present disclosure includes systems and methods for operating a wireless communication system in multiple modes. The system is configured in a first mode when a transmission interference in a receiver of a wireless device is below a first threshold. The system is configured in one or more intermediate modes when the transmission interference is above the first threshold and below a second threshold. The system is configured in a second mode when the transmission interference is above the second threshold. The one or more intermediate modes activate interference management processes and the wireless device transmits data and receives data simultaneously. In some embodiments, transmission interference may be based on an SINR measurement.Type: ApplicationFiled: November 6, 2013Publication date: May 7, 2015Applicant: QUALCOMM INCORPORATEDInventors: Xiaoyin He, Ashok Mantravadi, Bruce A. Judson, Prashanth Akula
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Patent number: 8929843Abstract: An antenna power coupler having a variable coupling factor is disclosed. In an exemplary embodiment, an apparatus includes a coupler configured to generate a power detection signal based on transmit signal power associated with a plurality of transmission technologies and a variable attenuator configured to apply a selected attenuation factor to the power detection signal to generate an adjusted power detection signal, the selected attenuation factor associated with a selected transmission technology.Type: GrantFiled: December 21, 2011Date of Patent: January 6, 2015Assignee: QUALCOMM IncorporatedInventors: Prashanth Akula, David Maldonado, Kevin Hsi Huai Wang
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Publication number: 20140213235Abstract: The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust transmit (Tx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when one subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Tx processing to mitigate the effects of de-sense on the victim.Type: ApplicationFiled: September 11, 2013Publication date: July 31, 2014Applicant: QUALCOMM IncorporatedInventors: Huang LOU, Francis M. NGAI, Wenjun LI, Michael L. MCCLOUD, Amit MAHAJAN, Nate CHIZGI, Rashid ATTAR, Girishkumar PANCHAL, Jun HU, Prashanth AKULA, Vansh MAKH, Jittra JOOTAR, Divaydeep SIKRI, Mungal DHANDA, Erdogan DEDE, Narendra Varma GOTTIMUKKALA, Yingbo LI, Peter HUANG
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Publication number: 20140213210Abstract: The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust receive (Rx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when a subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Rx processing to mitigate the effects of de-sense on the victim while causing minimal impact to the aggressor.Type: ApplicationFiled: September 11, 2013Publication date: July 31, 2014Applicant: QUALCOMM IncorporatedInventors: Wenjun LI, Huang LOU, Michael L. MCCLOUD, Amit MAHAJAN, Nate CHIZGI, Jing SUN, Francis M. NGAI, Jun HU, Vansh MAKH, Prashanth AKULA, Peter HUANG, Jittra JOOTAR, Erdogan DEDE, Narendra Varma GOTTIMUKKALA, Yingbo LI
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Publication number: 20140162570Abstract: An RFIC configuration for reduced antenna trace loss is disclosed. In an exemplary embodiment, an apparatus includes a primary RFIC and a secondary RFIC that is configured to receive analog signals from at least two antennas. The secondary RFIC is configured to process selected analog signals received from at least one antenna to generate an analog output that is input to the primary RFIC.Type: ApplicationFiled: December 12, 2012Publication date: June 12, 2014Applicant: QUALCOMM INCORPORATEDInventors: I-Hsiang Lin, Zhijie Xiong, Seshagiri Krishnamoorthy, Jin-Su Ko, Prashanth Akula, Liang Zhao, Kevin Hsi Huai Wang, Desong Zhao
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Patent number: 8618876Abstract: An exemplary embodiment discloses a digital control block for dynamically regulating power consumption of the transmitter; and a first driver amplifier circuit comprising a plurality of bias-modes each corresponding to a power consumption level in the transmitter, the digital control block to instruct the first driver amplifier circuit to operate in a selected bias-mode to regulate power consumption of the transmitter.Type: GrantFiled: May 30, 2008Date of Patent: December 31, 2013Assignee: QUALCOMM IncorporatedInventors: Junxiong Deng, Gurkanwal Singh Sahota, Prashanth Akula, Thomas Marra, Vladimir Aparin